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Cadillac Repair/Questions on 1994 sedan deville 4.9 PFI

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Question
Hi, My dad gave me his 1994 cadillac sedan deville 1994 242 000 km on it run fine t'ill it's warm then even when you put gentle presssure on the gas it almost stalls and some time it does stall put in park start right up!! Code the code po 41 current and po 39 history. On idle warm or cold it goes at 350 rpm then jumps to 1350 then stable back to 650 rpm. I need a bit of help here I want to know what do I need to replace ro fix that. Also a aother little problem with the blower witch wont shut off even with the key off!! can I just replace the relay module on the blower on I need to replace the blower assy?? Thank for thaking time to help me!

Answer
P041 CURRENT = No camshaft reference signal from the ignition module.

The problem can be either the camshaft sensor and or the ignition module.

P039 = Fault in the overdrive circuit of the transmission.

As to the blower problem the fault is either the blower motor and or the A/C-Heater PROGRAMMER.

You will need numerous pictures and test procedures to test for the cause of these problems.

Since this persons website only allows ONE picture, You need to e-mail: onlineautohelp@msn.com

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On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.

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Held over 15 GM certifications prior to retirement in 1989.

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Prior to retirement held several ASE certifications, numerous Factory certifications.

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